Gregorio del Pilar, Province of Ilocos Sur
| Type | municipality |
|---|---|
| Island group | Luzon |
| Region | Ilocos Region (Region I) |
| Province | Ilocos Sur |
| Barangay count | 7 |
| Postal code | 2720 |
| Coastal/Landlocked | landlocked |
| Marine waterbodies | none (landlocked) |
| Philippine major island(s) | Luzon |
| Area (2013) | 41.66 km2 (16.09 sq mi) |
| Population (2020) | 4,472 |
| Density (2020) | 107 / km2 (278 / sq mi) |
| Coordinates | 17° 9' North, 120° 37' East (17.1481, 120.6109) |
| Estimated elevation above sea level | 303.9 meters (996.7 feet) |
Gregorio del Pilar, formerly known as Concepcion, is a landlocked municipality in the coastal province of Ilocos Sur.
The municipality has a land area of 41.66 square kilometers or 16.09 square miles which constitutes 1.60% of Ilocos Sur's total area. Its population as determined by the 2020 Census was 4,472. This represented 0.63% of the total population of Ilocos Sur province, or 0.08% of the overall population of the Ilocos Region. Based on these figures, the population density is computed at 107 inhabitants per square kilometer or 278 inhabitants per square mile.
Barangays
Gregorio del Pilar has 7 barangays as shown in the following table.
Demographic profile of barangays
| Barangay | Population percentage (2020) | Population (2020) | Population (2015) | Change (2015‑2020) | Annual Population Growth Rate (2015‑2020) |
|---|---|---|---|---|---|
| Alfonso | 22.29% | 997 | 958 | 4.07% | 0.84% |
| Bussot | 10.11% | 452 | 529 | -14.56% | -3.26% |
| Concepcion | 16.70% | 747 | 825 | -9.45% | -2.07% |
| Dapdappig | 12.21% | 546 | 536 | 1.87% | 0.39% |
| Matue-Butarag | 15.36% | 687 | 771 | -10.89% | -2.40% |
| Poblacion Norte | 12.52% | 560 | 616 | -9.09% | -1.99% |
| Poblacion Sur | 10.80% | 483 | 640 | -24.53% | -5.75% |
| Gregorio del Pilar Total | 4,472 | 4,875 | -8.27% | -1.80% | |
Economy
The annual regular revenue of Gregorio del Pilar for the fiscal year of 2016 was ₱152,860,164.70.
details
| Fiscal Year | Annual Regular Income | Change |
|---|---|---|
| 2009 | 24,995,679.37 | – |
| 2010 | 57,471,151.94 | 129.92% |
| 2011 | 59,892,364.02 | 4.21% |
| 2012 | 53,209,316.61 | -11.16% |
| 2013 | 48,957,884.37 | -7.99% |
| 2014 | 29,083,137.55 | -40.60% |
| 2015 | 56,400,224.33 | 93.93% |
| 2016 | 152,860,164.70 | 171.03% |
End notes:
| ||
Demographics
Households
The household population of Gregorio del Pilar in the 2015 Census was 4,836 broken down into 908 households or an average of 5.33 members per household.
details
| Census date | Household population | Number of households | Average household size |
|---|---|---|---|
| 3,417 | 627 | 5.45 | |
| 3,940 | 713 | 5.53 | |
| 4,134 | 811 | 5.10 | |
| 4,255 | 813 | 5.23 | |
| 4,216 | 849 | 4.97 | |
| 4,836 | 908 | 5.33 |
Population by age group
According to the 2015 Census, the age group with the highest population in Gregorio del Pilar is 20 to 24, with 465 individuals. Conversely, the age group with the lowest population is Under 1, with 76 individuals.
details
| Age group | Population (2015) | Age group percentage |
|---|---|---|
| Under 1 | 76 | 1.56% |
| 1 to 4 | 345 | 7.08% |
| 5 to 9 | 395 | 8.10% |
| 10 to 14 | 426 | 8.74% |
| 15 to 19 | 401 | 8.23% |
| 20 to 24 | 465 | 9.54% |
| 25 to 29 | 440 | 9.03% |
| 30 to 34 | 414 | 8.49% |
| 35 to 39 | 320 | 6.56% |
| 40 to 44 | 272 | 5.58% |
| 45 to 49 | 259 | 5.31% |
| 50 to 54 | 244 | 5.01% |
| 55 to 59 | 244 | 5.01% |
| 60 to 64 | 175 | 3.59% |
| 65 to 69 | 117 | 2.40% |
| 70 to 74 | 84 | 1.72% |
| 75 to 79 | 83 | 1.70% |
| 80 and over | 115 | 2.36% |
| Total | 4,875 | 100.00% |
| ||
Historical population
The population of Gregorio del Pilar grew from 99 in 1903 to 4,472 in 2020, an increase of 4,373 people over the course of 117 years. The latest census figures in 2020 denote a negative growth rate of 1.80%, or a decrease of 403 people, from the previous population of 4,875 in 2015.
details
| Census date | Population | Growth rate |
|---|---|---|
| 99 | – | |
| 1,436 | 18.40% | |
| 2,046 | 1.79% | |
| 1,819 | -1.20% | |
| 2,164 | 1.54% | |
| 2,657 | 2.03% | |
| 2,950 | 2.12% | |
| 3,080 | 0.87% | |
| 3,417 | 1.04% | |
| 3,940 | 2.70% | |
| 4,134 | 1.04% | |
| 4,308 | 0.57% | |
| 4,219 | -0.76% | |
| 4,875 | 2.79% | |
| 4,472 | -1.80% |
The total number of registered voters or electorate in Gregorio del Pilar for the year 2019 was 3,427, broken down into 1,851 males and 1,576 females.
Location
The municipal center of Gregorio del Pilar is situated at approximately 17° 9' North, 120° 37' East, in the island of Luzon. Elevation at these coordinates is estimated at 303.9 meters or 996.7 feet above mean sea level.
Distances
Based on the great-circle distance (the shortest distance between two points over the surface of the Earth), the cities closest to Gregorio del Pilar are Candon, Ilocos Sur, Vigan, Ilocos Sur, San Fernando, La Union, Baguio, Batac, Ilocos Norte, and Tabuk, Kalinga. The nearest municipalities are Quirino, Ilocos Sur, Sigay, Ilocos Sur, Salcedo, Ilocos Sur, San Emilio, Ilocos Sur, Lidlidda, Ilocos Sur, and Galimuyod, Ilocos Sur. Its distance from the national capital is 285.75 kilometers (177.56 miles). The following list delineates such distance measurements.
great-circle distance
Nearest towns
- Quirino, Ilocos Sur, 7.09 kilometers (4.41 miles) to the East (S80°E)
- Sigay, Ilocos Sur, 7.63 kilometers (4.74 miles) to the South (S1°W)
- Salcedo, Ilocos Sur, 7.96 kilometers (4.95 miles) to the West (N88°W)
- San Emilio, Ilocos Sur, 10.58 kilometers (6.57 miles) to the North‑Northwest (N19°W)
- Lidlidda, Ilocos Sur, 14.97 kilometers (9.30 miles) to the Northwest (N40°W)
- Galimuyod, Ilocos Sur, 15.61 kilometers (9.70 miles) to the West‑Northwest (N76°W)
Nearest cities
- Candon, Ilocos Sur, 17.99 kilometers (11.18 miles) to the West‑Northwest (N75°W)
- Vigan, Ilocos Sur, 52.71 kilometers (32.75 miles) to the North‑Northwest (N27°W)
- San Fernando, La Union, 66.64 kilometers (41.41 miles) to the South‑Southwest (S28°W)
- Baguio, 81.48 kilometers (50.63 miles) to the South (S1°W)
- Batac, Ilocos Norte, 100.67 kilometers (62.56 miles) to the North (N3°W)
- Tabuk, Kalinga, 97.81 kilometers (60.78 miles) to the East‑Northeast (N68°E)
Distance from Manila: 285.75 kilometers (177.56 miles) to the South (S8°E)
Notes
- Unless otherwise specified, population count (excluding percentages), household data, and land area figures are derived from the Philippine Statistics Authority.
- Data on registered voters is from the Commission on Elections.
- Data on annual regular income is from the Bureau of Local Government Finance, Department of Finance
- Postal code information is from the Philippine Postal Corporation.